⚠️ Severe Thunderstorm Warning – Dallas, IA; Madison, IA; Polk, IA; Warren, IA – Monday, July 20, 2026

Severe Thunderstorm Warning issued July 20 at 9:47PM CDT until July 20 at 10:30PM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Southwestern Polk County in central Iowa…
Eastern Madison County in south central Iowa…
Southeastern Dallas County in central Iowa…
Northwestern Warren County in south central Iowa…

* Until 1030 PM CDT.

* At 947 PM CDT, a severe thunderstorm was located over De Soto, or 5
miles south of Adel, moving southeast at 30 mph.

HAZARD…Ping pong ball size hail and 60 mph wind gusts.

SOURCE…Radar indicated.

IMPACT…People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.

* Locations impacted include…
West Des Moines, Urbandale, Clive, Waukee, Norwalk, Winterset,
Adel, Earlham, De Soto, Van Meter, Jordan Creek Town Center, Avenue
Of The Saints Event Center, St. Charles, Martensdale, Cumming,
Patterson, East Peru, Bevington, Spring Hill, and Badger Creek
State Park.

This includes the following highways…
Interstate 35 between mile markers 54 and 72.
Interstate 80 between mile markers 103 and 122.

Instructions

For your protection move to an interior room on the lowest floor of a
building.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.